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Titolo:
THE EFFECT OF SLUDGE AGE ON DECOMPOSITION OF SLUDGE IN BATCH AEROBIC DIGESTION OF ACTIVATED-SLUDGE ACCLIMATED TO GLUCOSE AND PEPTONE
Autore:
MATSUDA A; YUZAKI H; OMORI D; KAWASAKI K;
Indirizzi:
EHIME UNIV,DEPT APPL CHEM MATSUYAMA EHIME 790 JAPAN
Titolo Testata:
Journal of Chemical Engineering of Japan
fascicolo: 6, volume: 26, anno: 1993,
pagine: 704 - 708
SICI:
0021-9592(1993)26:6<704:TEOSAO>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTERMITTENT AERATION; PHOSPHORUS; KINETICS; BEHAVIOR; NITROGEN;
Keywords:
ENVIRONMENT; AEROBIC DIGESTION; ACTIVATED SLUDGE; SLUDGE AGE; SLUDGE DECOMPOSITION; OXYGEN UPTAKE RATE; SLUDGE VOLUME INDEX;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
9
Recensione:
Indirizzi per estratti:
Citazione:
A. Matsuda et al., "THE EFFECT OF SLUDGE AGE ON DECOMPOSITION OF SLUDGE IN BATCH AEROBIC DIGESTION OF ACTIVATED-SLUDGE ACCLIMATED TO GLUCOSE AND PEPTONE", Journal of Chemical Engineering of Japan, 26(6), 1993, pp. 704-708

Abstract

Experiments on batch aerobic digestion in continuous aeration were carried out by using activated sludges acclimated to synthetic wastewater of glucose and peptone at various sludge ages. As sludge age decreased, VSS decreased quickly with the progress of digestion and the ratioof maximum VSS reduction to initial VSS increased, but VSS/SS was kept constant. The decomposition rate of sludge was proportional to the biodegradable VSS, and its proportional constant (rate constant of decomposition) increased as sludge age decreased. The oxygen uptake rate of sludge was related to the decomposition rate of sludge by using a reaction model where the composition of activated sludge cell was C5H7NO2. Moreover, the SVI of sludge increased with the progress of digestion, but the final SVI was within the range of good settleability.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 14:42:59